There are quite a few Welsh language clips on this youtube channel from the National Screen and Sound Archive: https://www.youtube.com/channel/UCT2NfMee-YxsGaH852qTx3Q/videos
This one is in English but it’s so funny I had to post it…
I wouldn’t be at all surprised if the Venusians were angry, either…
Wonderful! I don’t know what I like most - the Vesuvians, Hayes Island with all the cars going up and down, or the little girl’s mam ringing Sion Corn to tell him to buy Sindy clothes!